Cylinder-mounting for carriage-feeds.



0. P. MYE R. .GYLINDBR MOUNTING FOR CARRIAGE mans. APPLICATION FILED MAY 4, 1910.- 975,784, Patented Nov. 15, 1910.

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CLAYTON PITTINGER MYER, OF HOUSTON, TEXAS.

CYLINDER-MOUN TING FOR CARRIAGE-FEEDS.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed May 4, 1910. Serial No. 559,247.

To all whom 'it may concern:

Be it known that I, CLAYTON P. MYER, a

citizen of the United States, and a resident j of Houston, in the county of Harris and 5 State of Texas, have invented a new and Improved Cylinder-Mounting for Carriage- Feeds, of which the following is a full, clear, and exact description.

This invention relates to cylinder mountin s for carriage feeds for use with sawmils and the like, and has reference more particularly to a cylinder mounting in which the steam or other fluid pressure cylinder, having a piston therein and a rod operativelyconnected with the carriage, is adjustable to equalize the wear resulting from the sagging of the piston rod.

The object of the invention is to provide a simple and efficient mounting for a carriage feed for use with saw-mills and like devices, in whicha suitable carriage is moved back and forth by means of fluid pressure such as steam, acting in the cylinder, upon a piston, in which the cylinder is so mounted that it is wholly or partly adjustable so that the wear caused by the sagging of the piston rod coming into engagement with the inside of the cylinder can be equalized, by means of which the life of the cylinder is materially augmented, and which is so constructed that the cylinder can be adjusted rapidly and with little difl iculty.

The invention consists in the construction and combination of parts to be more fully described hereinafter, and particularly set forth in the claim.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a longitudinal section of a saw-mill carriage having an embodiment of my invention applied thereto; Fig. 2 is an enlarged side elevation of part of the cylinder, showing the means for adjustably mounting the same; Fig. 3 is a longitudinal section of part of the cylinder and its mounting, on the line 3-3 of Fig. 4; and Fig. 4 is a transverse section through the cylinder and its mounting.

Before proceeding to a more detailed explanation of my invention, it should be clearly understood that while the device is particularly useful in connection with steam feeds for saw-mill carriages, it can also be advantageously employed in connection with other apparatus having cylinders subject to wear because of long piston rods, which can sag into engagement with the inside of the cylinder. I provide a cylinder which is adjustably mounted, that is, rotatably mounted, so that from time to time the cylinder can be turned so that the sagging piston rod comes into engagement with a different part of the cylinder. In this way the wear can be equalized, so that it is distributed uniformly about the internal circumference of the cylinder, and thereby the life of the same is multiplied from five to six times.

In steam feeds for saw-mills, the cylinders are sometimes from thirty to seventyfive feet in length, and the piston rods are correspondingly from forty to ninety feet in length. Though made from steel tubing of considerable diameter, they sag at the central portions, and thus cause excessive wear of the cylinders. I prefer to provide a cylinder in several sections, of which the section, or sections, between the end sections, are adjustable. Preferably all the sections except the end ones are rotatable. This and others of the details of construction form no part of the invention, and can be varied in accordance with individual preference and special conditions, without departing from the underlying spirit of the invention.

Referring more particularly to the draw-- ings, I have shown, for example, the framework 10 of a saw-mill carriage feed having a track 11 upon which the saw-mill carriage 12 is mounted to move backward and forward, to move the timbers into engagement with the saws, and carry them as they are being sawn. The steam cylinder 13 comprises a central section 14, a rear end section 15, and a head end section 16. At the adj acent ends the sections have suitable flanges 17, which are bolted together to secure the sections in alinement. The section 15 has a head 18, bolted to a flange 19, and the section 16 has a suitable stufling box end 20, having a flange 21 bolted to an end flange 22 of the section 16. The piston rod 23 is secured to a piston 24, which may be of any suitable form. At its outer end the piston rod has a suitable connection 25 by means of which it is attached to the carriage 12. The cylinder has steam inlets 26 and 27. controlled by valves 28 and 29, respectively, by means of which steam can be introduced into each end of the cylinder. A pivoted lever 30 is connected by means of rods 31, with the valves, and is controlled by a link 320p:

33 controlled by a hand lever 34, which is within reach of the sawyer, and by means of which he can operate the carriage.

The middle section 14 of the cylinder is rotatably mounted in a bearing 35 by means of a base member 36, forming the lower part of the bearing, and having the end extensions 37 secured upon the framework, by means 'of bolts 38. The base member has a semi-circular recess. The bearing also has an upper, arched member 39, which is re cessed to form with the recess of the base member, a semi-circular openin which receives the section 14 of the cylinder. The cylinder is preferably provided with an integral wearing collar 40, which is received in the bearing. The base member 36, in the sides has grooves 41, provided at the lower ends with enlargements 42, and adapted to receive bolts 43, the heads 44 of which are located in the enlargements 42. The upper member 39 has side extensions 44 provided with openings 45, through which the thread ed ends of the bolts 43 project. Retaining nuts 46 are screwed upon the upper ends of the bolts and seat upon the extensions 44, to hold the parts of the bearing together. The base member 36, at its inner, upper edges has depressions 47, which receive correspondingly formed projections 48 at the inner rim of the upper member 39 of the bearing.

When it is desired to adjust the cylinder section 14, the bolts connecting the end flanges 17 of the section 14 and the flanges of the sections 15 and 16 areienioved, and the bolts 43 are loosened. The cylinder can then be easily turned,-as it will rotate freely inthe bearing 35. If necessary, a suitable implement for gripping the cylinder and rotating it can be employed. When the. cylinder has been turned as far as desired, the

nuts 46 can be turned upon the bolts 43 to clamp the upper member 39 of the bearing against the cylinder, inorder to hold the same with respect to the lowermember, and when the bolts of the flanges 17 have been replaced, the cylinder is ready for further operation. bolt holes in the flanges 17 are suitably spaced in order that the cylinder section can be rotated as described, and after being rotated can be secured to the other sections.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent:

The combination, with a carriage feed having a fluid pressure cylinder, a piston It will be understood that the 1 therein, and a piston rod associated with said piston and adapted to be connected to the carriage, of a cylinder mounting comprising a bearing rotatably supporting said cylinder, and having means for clamping upon said cylinder to hold the same in any desired rotated position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

L. P. SCARBOROUGH, GEO. W. COLLIER. 

